| 62 / | HD | REFRIGERATION |
| 440 | DF | COOLED ENCLOSURE {8} |
| 452 | DF | .~ With heat rejecting element enclosure or cooling feature {2} |
| 454 | ![]() | .~.~ With ventilation means therefor {2} |
| 455 | DF | .~.~.~> Forced circulation |
| 456 | DF | .~.~.~> Vertical flue venting bottom compartment |